Dual-tipped nasal syringe and aspirating device



March 24, 1970 o. E. HILL ET AL 3,502,078

DUAL-TIPPED NASAL SYRINGE AND ASPIRATING DEVICE Filed Nov. 15, 1967 2Sheets-Sheet 1 awe/meg DOA/OLD t". HILL FEE/V B. HILL March 24, 1970 D.E. HILL ET AL 3, 0

DUAL-TIPPED NASAL SYRINGE AND ASPIRATING DEVICE Filed Nov. 15, .1967 2Sheets-Sheet 2 FIG. 9

United States Patent 3,502,078 DUAL-TIPPED NASAL SYRINGE AND ASPIRATIN GDEVICE Donald E. Hill and Fern B. Hill, both of 1927 N. Evergreen,Burbank, Calif. 91505 Filed Nov. 15, 1967, Ser. No. 683,314 Int. Cl.A61m 1/00 US. Cl. 128232 9 Claims ABSTRACT OF THE DISCLOSURE A nasalsyringe and aspirating device having a pair of liquid flow path tubes ortube means, each provided with its own flexible, collapsible syringebulb. The syringe bulbs are separated by a relatively rigid stiffeningwall which permits simultaneous and similar operation of the syringebulbs so that each open tip end of each liquid flow path tube will beoperated in either a pumping or suction fashion to substantially thesame extent.

Generally speaking, the present invention comprises a dual tipped nasalsyringe and aspirating device for use in dispensing and applying anapplicatory liquid into a pair of nostrils and/or for evacuating liquidtherefrom through a pair of similar longitudinal, hollow applicatoryand/or withdrawal liquid flow path tubes or tube means having physicallylaterally separated similar forward end portions thereof carried by thetubes or tube means and provided with similar open forward tip ends(appropriately spaced and, in certain forms, provided with speciallyshaped and sized nostril-engageable exterior portions) defining liquidegress and ingress openings for the passage of liquid from thecorresponding ones of said tubes or tube means outwardly therefrom orinwardly thereinto, respectively, depending upon whether the completesyringe is used as a liquid applicatory syringe or as a liquidaspirating and evacuating syringe. The rear ends of the liquid flow pathtubes or tube means are provided with a pair of similar, hollow,interiorly non-communicating and hydraulically independent and isolated,flexible, collapsible syringe bulbs, each having a closed rear end and aforward end sealingly coupled to and engaged around and with respect toa corresponding one of said pair of tubes or tube means and effectivelycomprises a corresponding hand-operable, two-way pump and aspiratingdevice in communication with the hollow bore of the corresponding one ofsaid pair of tubes or tube means but in a manner completelyhydraulically isolated and independent of the other one of said pair ofsyringe bulbs. Each of said pair of syringe bulbs is adapted to besimultaneously and substantially similarly manually operated for eitheroutflow pumping purposes or inflow pumping and aspirating purposes withrespect to the corresponding forward open tip ends of the correspondingtubes or tube means in communication therewith.

One preferred form of the invention shows each of the syringe bulbs asbeing mechanically physically joined together in laterally adjacentrelationships so that lateral manual squeezing action of a persons handapplied thereto will simultaneously and substantially similarly collapseboth of the syringe bulbs and cause a similar pumping action thereof(either an outflow pumping or an inflow suction pumping action,depending upon the mode of use of the complete device).

In one preferred form of the invention, the abovedescribed simultaneousmanual collapsing of both syringe bulbs in substantially the same manneris facilitated by means making it diflicult, if not virtuallyimpossible, to manually collapse one of the syringe bulbs without col-ICC lapsing the other. One form of such means comprises a stiffeningwall or means lying in a junction plane between and effectivelybisecting the region where the pair of syringe bulbs are effectivelyphysically connected and joined together, with said stiffening wall ormeans having a substantial degree of stiffness in the junction planethereof to an extent such as to make it very diflicult to collapseeither or both of the bulbs in a direction parallel to said junctionplane while making it extremely easy and simple to simultaneouslycollapse both of the syringe bulbs in an operation plane substantiallytransverse to said junction plane.

In one specific form of the invention, the open forward tip ends of thetubes or tube means are positionally reversed so that they will beupwardly directed for engagement within the nostrils of a person whosehead is in an erect position while the syringe bulbs are positioned atthe top of the upwardly directed rear ends of the corresponding tubes ortube means. This facilitates the most effective dual operation of thedevice without the necessity of a person reclining on a bed, or thelike, in the conventional prior art manner.

In one preferred form of the invention, the pair of laterally spacedtubes, adjacent to and between their forward end portions, define anopen septum-receiving recess to facilitate nasal engagement in anoptimum, effectively sealed manner.

Also, in one preferred form of the invention, the pair of tubes or tubemeans are made of a light-transmissive material, such as glass orcertain light-transmissive or partially light-transmissive plasticmaterials and, in certain prefen'ed forms thereof, the material may beof a very diflicult-to-break or substantially unbreakable type, such astempered or flexible glass or flexible plastic or rigid n0n-frangiblematerial.

With the above points in mind, it is an object of the present inventionto provide a novel, dual-tipped syringe capable of functioning as anapplicatory device for matched arpplicatory liquid feeding into a pairof nostrils.

It is a further object of the present invention to provide a noveldual-tipped syringe capable of functioning as a liquid evacuating andwithdrawing aspirating syringe for matched withdrawal of liquid from apersons nostrils.

It is a further object of the present invention to provide a noveldual-purpose dual-tipped syringe capable of performing in either of themanners set forth in the two preceding objects and provided with a novelmeans for causing the operation of the pumping means to be ofsubstantial equal magnitude.

It is a further object of the present invention to provide a device ofthe character set forth in the preceding object wherein the two pumpingmeans comprise a pair of similar syringe bulbs and wherein the means forcausing the pumping action of each of the syringe bulbs to be ofsubstantially equal magnitude comprises means rendering it diflicult toindependently operate one of the syringe bulbs without simultaneouslyoperating the other syringe bulb.

It is a further object of the present invention to provide a device ofthe character set forth in the preceding object, wherein the meansreferred to in the preceding object for rendering it difficult tooperate one syringe bulb without similarly operating the other syringebulb, comprises a stiffening wall or means lying between the two syringebulbs and adapted to substantially prevent the opreation of either orboth of the syringe bulbs in a direction substantially parallel to thestiffening wall or means While freely allowing similar collapsingoperation of both of said syringe bubs in an operating planesubstantially transverse to the junction plane in which said stiffeningwall or means lies.

It is a further object of the present invention to provide a noveldual-tipped syringe wherein the open forward tips ends of a similar pairof tubes thereof are appropriately laterally spaced and shaped andprovided with an appropriate septum-receiving recess therebetween tofacilitate optimum nasal engagement thereof.

It is a further object to provide a dual-tipped nasal syringe of thecharacter referred to herein, wherein the tube means are made of alight-transmissive material to allow the amount, level, orientation, andmovement or displacement of liquid therein to be visually observed and,in one preferred form, the material may also be of a substantiallyunbreakable nature.

It is a further object of the present invention to provide a device ofthe character referred to herein, which is provided with means forreversing the position of the dual nasal engagement portions of thedevice relative to the dual, simultaneously operable syringe bulbs sothat optimum operation of the device can be effected with respect to apersons nostrils While the person remains erect rather than reclining.

It is a further object of the present invention to provide a dual-tippednasal syringe device of the character referred to herein, having any orall of the advantages or features referred to herein, generically and/orspecifically, either individually or in combination, and which is ofextremely simple and very inexpensive construction, both as to the costof tooling preparatory to production thereof and as to the cost ofproduction per item subsequenly, and which is of virtually foolproof,easy-to-clean, and easy-to-use construction, all of which are conduciveto widespread manufacture, distribution, and use of the invention forthe purposes briefly outlined herein or for other substantiallyequivalent purposes.

Further objects are implicit in the detailed description which followshereinafter (which is to be considered as exemplary of, but notspecifically limiting the present invention), and said objects will beapparent to persons skilled in the art after a careful study of thedetailed description which follows, and all such implicit objects areintended to be included and comprehended within the broad scope of thepresent invention as fully as if illustrated and described in specificand particular detail herein.

For the purpose of clarifying the nature of the present invention,several exemplary embodiments of the invention are illustrated in thehereinbelow-described figures of the accompanying two sheets of drawingsand are described in detail hereinafter.

FIG. 1 is a perspective view of one exemplary embodiment of the presentinvention.

FIG. 2 is an enlarged, fragmentary, cross-sectional view, takensubstantially along the plane and in the direction indicated by thearrows 2-2 of FIG. 1, illustrating the interior construction of oneexemplary form of the pair of syringe bulbs.

FIG. 3 is a view similar to FIG. 2 but illustrates the fact that thepair of syringe bulbs collapse simultaneously and substantially to thesame extent when squeezed in an operation plane transverse to a junctionplane conaining the mechanical or physical junction of the pair ofsyringe bulbs with respect to each other.

FIG. 4 is an enlarged cross-sectional view, taken substantially alongthe plane and in the direction indicated by the arrows 44 of FIG. 1,illustrating the web joining the pair of tubes.

FIG. 5 is a fragmentary view taken substantially along the plane and inthe direction indicated by the arrows 55 of FIG. 1 and shows the forwardportion of the device, including the two forward open ends and theseptum-engaging recess formed in the web therebetween, in inserted,engaged relationship with respect to a pair of nostrils and anintervening septum which are shown fragmentarily in phantom in FIG. 5.

FIG. 6 is a fragmentary, perspective view showing a slightly modifiedtype of exterior nostril-engaging means carried by the forward open tipends of the pair of tube means.

FIG. 7 is a fragmentary view taken substantially along the plane and inthe direction indicated by the arrows 7-7 of FIG. 6 and shows in phantomthe appropriate position of corresponding nostrils when engagedtherewith.

FIG. 8 is a perspective view illustrating a modified form of theinvention having effectively reversed nostril-engageable portions orforward open tip end portions which make it possible to position thepair of syringe bulbs upwardly while the device is engaged with apersons nostrils when a persons head is erect rather than in theconventional reclining position for applying medication to a personsnostrils.

FIG. 9 is a somewhat diagrammatic and schematic, cross-sectional view ofa portion of a modified form of the invention in the act of beingmolded.

FIG. 10 illustrates the part produced in FIG. 9 in the act of having apair of syringe bulb outer enclosing walls molded onto a divider wallportion of the structure formed in FIG. 9 so as to form the completedevice.

FIG. 11 shows the complete device removed from the mold of FIG. 10 andwith the tubes bent outwardly to provide an appropriate spacingapproximately equal to the normal width between a persons nostrils andthus shows this modification of the device in its final form.

Generally speaking, the exemplary first form of the inventionillustrated in FIGS. 15 may be said to comprise a dual-tipped syringe ofthe applicatory and/or the aspirating or suction type, which isgenerally designated by the reference numeral 20.

The complete syringe device 20 is shown as including a pair of similar,longitudinal, hollow liquid flow path tubes or tube means 22 havingphysically laterally separated similar forward end portions 24 thereofprovided with similar open forward tip ends 26 defining liquid egressand ingress openings 28 for the passage of liquid from the correspondinginterior bores 30 of the tubes 22 either outwardly therefrom or inwardlythereinto, respectively, depending upon whether the complete device 20is used as a liquid applicatory syringe or as a liquid aspirating andevacuating syringe.

In the exemplary first form of the invention illustrated, the rear endsof the liquid flow path tubes 22 are provided with a pair of hollow(interiorly non-communicating and effectively hydraulically independentand isolated), fiexible, collapsible syringe bulbs, generally indicatedat 32, each having a closed rear end 34 and an open forward end 36 whichis sealingly coupled to and engaged around and with respect to acorresponding communication opening 38 at the rear end of thecorresponding bore 30 of the corresponding tube 22. However, the mode ofconnection of each syringe bulb 32 With respect to the correspondingbore 30 of the corresponding tube 22 is not limited to the specificarrangement illustrated, but may be accomplished in any of a variety ofdifferent ways within the broad scope of the present invention.

Each of the syringe bulbs 32 may be said to effectively comprise anddefine a corresponding hand-operable, twoway pump and aspirating devicein communication with the corresponding bore 30 of the correspondingtube 22, but completely hydraulically isolated from, and independent of,the other syringe bulb 32.

Each of the pair of syringe bulbs 32 is adapted to be substantiallysimultaneously and similarly manually operated for either outflowpumping purposes with respect to the corresponding tube 22 and forwardopen tip end 26 thereof or for inflow pumping and aspirating purposeswith respect to the corresponding forward open tip end 26 and thecommunicating bore 30 of the corresponding one of the pair of tubes 22.

The important point to note is that the intended mode of operation ofthe pair of syringe bulbs 32 is such that they are adapted to bemanually pumped in a substantially equal-volume displacement manner,whether for outflow pumping purposes or for inflow pumping purposes, and

from each other insofar as hydraulic communication is concerned, butwhich mechanically and physically joins them together in side-by-side,laterally adjacent relationship, so that the simultaneous cooperatingmanual collapsing and hand-pumping operation of both of the syringebulbs 32 in substantially the same manner may be facilitated by reasonof their lateral physical juxtaposition. This makes possible the type oflateral manual squeezing action illustrated fragmentarily in FIG. 3,which will be the most natural attempted mode of operation of the pairof syringe bulbs 22.

However, the above-described preferred mode of simultaneous andsubstantially similar pumping operation of the pair of syringe bulbs 32is further provided for by reason of the fact that the pair of jointsyringe bulbs 32 are of collapsible construction in what might be termedan operation plane, which is indicated diagrammatically in broken linesat 42 in FIG. 3, which is substantially trans verse and perpendicular toa junction plane, such as is indicated diagrammatically at 44 in FIG. 3,which effectively bisects the region where the pair of syringe bulbs 32are effectively physically interconnected and joined together by thepreviously mentioned junction wall 40, which is of effectivelyrelatively rigid and difficult-to-collapse construction and which, thus,may be said to effectively comprise a stiffening wall or means lyingsubstantially parallel to and coincident with the junction plane 44 andproviding a very substantial degree of stiffness and non-collapsibilityto the pair of laterally joined syringe bulbs 32 in a direction parallelto said stiffening wall 40 and the junction plane 44 whereby to make itvirtually mandatory for the collapsing manual operation of the pair ofsyringe bulbs 32 to occur substantially transverse thereto in adirection parallel to the previously mentioned operation plane 42. This,of course, virtually makes it mandatory that both syringe bulbs 32 becollapsed substantially simultaneously and in substantially the samedegree, thus bringing about the substantially equal-volume pumpingaction of both syringe bulbs 32, which is a major and extremelyimportant feature of the present invention.

In connection with the foregoing equal-volume pumping action of each ofthe two syringe bulbs 32 and of each of the two tubes 22 and of each ofthe two open forward tip ends 26', it should be noted that this is animportant feature because, in various prior art attempts to provide adual syringe, but where such hydraulic isolation was not provided, itwas found that any variation in the conditions encountered by eitherforward open tip end merely had the effect of causing an effectivepumping malfunction of one or the other of the two open forward tipends. For example, if one of them encountered a much greater flowrestriction than did the other, this normally merely meant thatvirtually the entire pumping action was effective on the other openforward tip end and virtually no pumping occurred through theeffectively restricted open forward tip end. This was true With suchprior art devices whether they were employed for outflow or inflowpumping purposes. However, in the novel by draulically isolatedconstruction of the present invention, it will be found that if eitheropen forward tip end 26 encounters such a flow restriction, it will notchange the effective pumping action of the other open forward tip end 26whatsoever because of the hydraulic isolation therefrom. All that willhappen is that pressure or suction will build up relative to theeffectively restricted open forward tip end 26 to a degree such as tobring about a corrective liquid feeding action therethrough, adapted toovercome to a very substantial degree, the effect of the effectiverestriction on the liquid flow therethrough.

It should be noted that each forward open tip end 26 may be effectivelyprovided with a similar exterior nostrilengaging means for effectivelyengaging the interior of a corresponding nostril when inserted thereintoin a manner facilitating the simultaneous and similar liquid feedingaction, either thereinto or therefrom, depending upon whether the entiredevice is employed in a liquid applicatory manner or in a liquidaspirating and evacuating manner.

In the exemplary first form of the invention illustrated in FIGS. 1-5,each of said exterior nostril-engaging means may be said to comprisemerely the outer surface of the corresponding forward end portions 24,as indicated at 46, and it will be noted that said nostril-engagingmeans 46 are laterally spaced apart a lateral width slightly larger thanthe width of a conventional human septum and substantially equivalent tothe lateral separation of a normal pair of human nostrils of a personwhose nostrils are intended to be engaged thereby. Thus, it may be saidthat the forward end portions 24 of the tubes 22 and the socalledeffective exterior nostril-engaging means 46 effectively define an openseptum-receiving recess 50 there between into which a human septum, suchas is shown fragmentarily and somewhat diagrammatically in phantom at 52in FIG. 5, is adapted to be received when the device is fully engagedwith the nostrils, indicated diagrammatically and fragmentarily inphantom at 54 in FIG. 5, of the human nose, indicated diagramaticallyand fragmentarily in phantom at 56 in FIG. 5.

Also, it should be noted that, in the example illustrated in theexemplary first form of the invention, the pair of tubes 22 arelaterally joined together along most of their forwardly extendinglengths by interconnecting web means 58 which terminates at the frontin, and effectively forms a portion of, the previously mentionedseptumreceiving recess 50. However, it should be noted that theinvention is not limited to the exemplary first form illustrated asbeing provided with such a web means 58. The web means may be modifiedsubstantially or eliminated entirely in certain forms of the invention.

FIGS. 6 and 7 illustrate fragmentarily a slightly modified form ofnostril-engaging means, and because it is a slight modification of thefirst form of the invention, similar parts are designated by similarreference numerals, followed by the letter a, however. In thismodification, it will be noted that each nostril-engaging means 46a hasat its inner side a flattened septum-engagea-ble surface means 60adapted to lie right against the corresponding flat, outer surface ofthe septum, such as that shown fragmentarily in phantom at 52a, forexample. Also, in the modification illustrated in FIGS. 6 and 7, each ofthe nostril-engaging means 46a comprises a forward exterior part of theforward open tip end 26a which diverges and effectively increases indiameter in a rearward direction and, thus, upon insertion into acorresponding nostril, such as that shown fragmentarily in phantom at54a in FIG. 7, for example, is adapted to substantially sealingly engagethe nostril 54a.

The modified form of the invention illustrated in FIGS. 6 and 7 may beemployed for liquid applicatory purposes, but it is particularlyimportant when the entire device is to be used as a liquid aspirating orsuction-applying syringe device 20a because, without the effectivesubstantially scaling engagement of the nostril-engaging means 46a withrespect to the nostrils 541:, a very substantial loss of suction willoccur, and the device will be rendered largely ineffective for liquidaspirating or evacuating purposes.

FIG. 8 illustrates a further slight modification of the invention, and,therefore, similar parts are designated by similar reference numerals,followed by the letter b, however.

In the FIG. 8 modification, a pair of laterally adjacent tubes 22b areeffectively positionally reversed by having an effectivedirection-reversing bent or curved portion 62 in each of said tubes 22b,which allows both of the syringe bulbs 32b to be positioned uppermost asshown in FIG. 8, While the corresponding pair of forward open tip ends26b are similarly upwardly directed so as to be received within thenostrils 54b in a liquid passage relationship relative thereto when thepersons head 64 is in a normal, erect position as shown in FIG. 8 ratherthan being in a reclining position as is normally required when usingsyringe bulbs for nasal applicatory or aspirating purposes.

It should be noted that a pair of tubes such as that shown at 22 in thefirst form of the invention, or any of the corresponding tubes of thevarious modifications thereof, are preferably made of alight-transmissive material so as to allow a user of the device tovisually observe and determine the amount, level, orientation, andmovement or displacement of liquid therein and therethrough duringoperation of the device. In certain forms of the invention, each of thesyringe bulbs, such as those shown at 32 in the first form of theinvention but not specifically limited thereto, may similarly be oflighttransmissive material for similar purposes. It is also desirablethat the tubes be substantially unbreakable, and this may beaccomplished by using an extremely rigid, non-frangible materialtherefor, or by using a relatively flexible material such as a plasticmaterial. For example, polyethlene or any of certain other plastics isboth sufficiently light-transmissive to accomplish the above-mentionedpurposes and sufficiently flexible to be substantially unbreakable, andthus illustrates an exemplary form of the invention.

FIGS. 9-11 illustrate a slight modification of the invention which lendsitself to very inexpensive, largescale manufacture thereof from plasticmaterial by conventional plastic-molding techniques. Because it is amodification, functionally or structurally similar parts will bedesignated by similar reference numerals, followered by the letter c,however.

In this modification the pair of tubes 22c are molded in a pair of molds66 and the hollow bores 300 within the tubes are formed through the useof core pins 68 (which are then removed); the rear ends of the tubes 220being integrally formed with a junction portion 70 which is rearwardlyextended and forms the junction wall or stiffening wall 40c. Thismolding operation is illustrated in FIG. 9. Upon completion of themolding operation (usually, injection molding) of FIG. 9, with thedevice being molded out of some suitable plastic material such asbutyrate or any other suitable moldable plastic, the molded article isremoved from the pair of molds 66 and is then inserted into another pairof molds 72 with the rear dividing or stiffening wall 400 beingeffectively an insert member initially positioned between the moldportions 72 which then may have the outer syringe bulb portions 74(which may be made of polyvinyl chloride or equivalent) molded by eitherblow-molding, slush-molding, or any other suitable process onto theexterior of the butyrate stiffening wall 400 so as to effectively definetherewith the two complete syringe bulbs 32c. The two butyrate tubes 220which were previously substantially parallel after completion of theinjection molding operation illustrated in FIG. 9, may be heated andreformed so as to have the proper lateral separation between the openforward tip ends 260 thereof.

It will be noted that the novel modification illustrated in FIGS. 9-11has all the functional aspects of the first form of the invention, butcomprises only three method stepsthe injection molding step shown inFIG. 9, the blow or 519. 1! molding step shown in FIG. 10, and the tubeheating and bending step referred to above, to produce the final productshown in FIG. 11. Thus, this form of the invention can be manufacturedvery inexpensively and provides a completely functional and yetnon-breakable dual-tipped double syringe device having all of thepreviously mentioned advantages of the present invention.

It should be understood that the figures and the specific descriptionthereof set forth in this application are for the purpose ofillustrating the present invention and are not to be construed aslimiting the present invention to the precise and detailed specificstructure shown in the figures and specifically described hereinbefore.Rather, the real invention is intended to include substantiallyequivalent constructions embodying the basic teachings and inventiveconcept of the present invention.

We claim:

1. A dual tipped nasal syringe or aspirating device, comprising: a pairof liquid flow path tube means having physically laterally separatedsimilar forward end portions thereof carried by said tube means andprovided with similar open forward tip ends defining liquid egress andingress openings for the passage of liquid from the corresponding onesof said tube means outwardly therefrom or inwardly thereinto,respectively, depending upon whether the device is used as a liquidapplicatory syringe or as a liquid aspirating and evacuating syringe;and a pair of hollow interiorly non-communicating and hydraulicallyindependent and isolated flexible, collapsible, syringe bulbs, eachhaving a closed rear end and an open forward end normally adapted to besealingly coupled to and engaged with respect to a communication openingat the rear end of a corresponding dilferent one of said pair of tubemeans, each of said syringe bulbs effectively comprising a correspondinghand-operable two-way pump and aspirating device in communication withthe corresponding one of said pair of tube means but hydraulicallyisolated and independent of and in interiorly non-communicatingrelationship with respect to the other one of said pair of syringebulbs, said pair of syringe bulbs being mechanically physically joinedtogether in laterally adjacent relationship for simultaneouslycooperating manual laterally directed collapsing and hand-pumpingoperation of both of said syringe bulbs in substantially the same mannerin a lateral operation plane by reason of their physical juxtapositionfor outflow pumping purposes with respect to each corresponding one ofthe pair of tube means and the corresponding forward open tip endsthereof and for similar simultaneous manual lateral operation in thelateral operation plane for inflow pumping and aspirating purpose withrespect to each corresponding one of the pair of tube means and thecorresponding forward open tip ends thereof, said physically joined andlaterally adjacent pair of syringe bulbs being of collapsibleconstruction in the lateral operation plane which is substantiallytransverse and perpendicular to a junction plane bisecting the regionwhere said pair of syringe bulbs are effectively physicallyinterconnected and joined together, said syringe bulbs being providedwith a relatively rigid and difiicult-to-collapse stiffening wall lyingsubstantially parallel to and coincident with the junction planebisecting the region where said pair of syringe bulbs are effectivelyinterconnected and joined together, said stiffening wall providing asubstantial degree of stiffness and noncollapsibility to the pair oflaterally joined syringe bulbs in a direction parallel to saidstiffening wall and the junction plane whereby to make it necessary forthe manual collapsing operation of the syringe bulbs to occursubstantially transversely thereto in the lateral operation plane in amanner which makes it probable that both syringe bulbs will be collapsedsimultaneously and in substantially the same degree.

2. A device as defined in claim 1, wherein each of said forward open tipends is provided with a similar exterior nostril engaging means foreffectively engaging the interior of a corresponding nostril wheninserted there into in a manner facilitating the simultaneous andsimilar liquid applicatory manual operation of the pair of syringe bulbsor the simultaneous and similar aspirating and evacuating manualsuction-producing operation of the pair of syringe bulbs.

3. A device as defined in claim 2, wherein each of said nostril engagingmeans comprises a forward exterior part of the forward open tip enddiverging and effectively increasing in diameter in a rearward directionand thus, upon insertion into a corresponding nostril, being adapted toultimately sealingly engage same.

4. A device as defined in claim 1, wherein said pair of tube means isprovided along at least a portion of their similar forwardly extendinglengths with interconnecting web means which terminates short of thelaterally spaced forward end portions thereof and thus defines an openseptum receiving recess between said forwardly extending laterallyspaced forward end portions thereof.

5. A device as defined in claim 4, wherein said physically laterallyseparated forward end portions of said pair of tube means are separatedby a distance substantially equivalent to the lateral separation of anormal pair of human nostrils of a person whose nostrils are intended tobe engaged thereby.

6. A device as defined in claim 1, wherein the inner adjacent side ofeach of said physically laterally separated forward end portions of saidpair of tube means is provided with a corresponding open forward tip endhaving a flattened septum-engageable surface means.

7. A device as defined in claim 1, wherein said pair of tube means isprovided with similar effective direction reversing bent and curvedportions adapted to substantially reverse the direction of flow ofliquid between the pair of syringe bulbs and the corresponding pair offorward open tip ends thereof thus facilitating the positioning of thedevice with the pair of syringe bulbs uppermost and with the pair offorward open tip ends directed upwardly for insertion into the normallydownwardly directed nostrils of a person whose head is in a normal erectposition.

8. A device as defined in claim 7, wherein said pair of tube means aremade of a light transmissive material allowing a user of the device tovisually observe and determine the amount, level, orientation, andmovement or displacement of liquid therein and therethrough duringoperation of the device.

9. A device as defined in claim 1, wherein said pair of tube means aremade of a light transmissive substantially unbreakable material allowinga user of the device to visually observe and determine the amount,level, orientation, and movement or displacement of liquid therein andtherethrough during operation of the device.

References Cited UNITED STATES PATENTS 493,208 3/1893 Cruickshank.669,098 3/1901 Overshiner l28l98 858,996 7/1907 Lamport 128250 X1,502,163 7/1924 Sprague 128250 FOREIGN PATENTS 368,973 2/1923 Germany.

GEORGE J. MARLO, Primary Examiner

